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Application of 3D printing hydrogel and bionic adhesion device

A 3D printing and hydrogel technology, applied in applications, household appliances, processing and manufacturing, etc., can solve the problems of restricting the practical application of bionic high-precision mechanical adhesion devices, difficulty in obtaining mechanical properties of adhesion devices, and poor formation of matrix materials , to achieve excellent driving performance, excellent adhesion performance, and high manufacturing freedom

Pending Publication Date: 2022-08-05
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The poor formation of the above-mentioned base materials and the poor precision of the preparation method make it difficult to obtain adhered devices with good mechanical properties and strong adhesion, which seriously restricts the practical application of bionic high-precision mechanically adhered devices

Method used

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  • Application of 3D printing hydrogel and bionic adhesion device
  • Application of 3D printing hydrogel and bionic adhesion device
  • Application of 3D printing hydrogel and bionic adhesion device

Examples

Experimental program
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preparation example Construction

[0058] In the present invention, when the biomimetic adhesion device is a manual biomimetic hydrogel adhesion device or a pneumatic biomimetic hydrogel adhesion device, the preparation method of the hydrogel adhesion structure preferably includes the following steps:

[0059] Provide 3D printing hydrogel ink;

[0060] According to the structure of the hydrogel adhesion structure, the 3D printing hydrogel ink is subjected to photo-curing 3D printing to obtain the hydrogel adhesion structure.

[0061] In the present invention, unless otherwise specified, all preparation raw materials are commercially available products well known to those skilled in the art.

[0062] The present invention provides 3D printing hydrogel ink.

[0063] The present invention does not have any special limitation on the 3D printing hydrogel ink, which can ensure that the mechanical properties of the prepared hydrogel material meet the requirements of tensile strength of 1-20 MPa and elongation at brea...

Embodiment 1

[0087] Acrylamide (15.975 g) and acrylic acid (1.459 g) were dissolved in a mixed solution of dimethyl sulfoxide (15 mL) and deionized water (35 mL) by magnetic stirring, followed by the addition of N,N-methylenebisacrylamide (0.038 g), LAP (0.0872g), tartrazine (0.015g), stir to dissolve, and obtain 3D printing hydrogel ink;

[0088] Put the 3D printed hydrogel ink into a smooth 3D printer material box, and use a light-curing 3D printer to print according to the model program (the light source intensity of the 3D printer is 250mW, the slice layer thickness is 0.1mm, the bottom layer exposure time is 25s, The exposure time of the remaining layers is 10s), and a chemically cross-linked hydrogel material can be obtained.

[0089] After soaking the chemically cross-linked hydrogel material in an aqueous solution of zirconium oxychloride (0.1 mol / L) for 48 hours, it was then soaked in deionized water for 48 hours to obtain a hydrogel material (physicochemical cross-linking).

[0...

Embodiment 2

[0092]Acrylamide (15.975 g) and N-acryloyl glycinamide (10 g) were dissolved in a mixed solution of dimethyl sulfoxide (25 mL) and deionized water (25 mL) by magnetic stirring, followed by the addition of polyethylene glycol diacrylate (PEGDA750, 0.076g), LAP (0.0872g) and tartrazine (0.03g), stir to dissolve, and obtain 3D printing hydrogel ink;

[0093] Put the 3D printing hydrogel ink into the material box of the light-curing 3D printer, and use the light-curing 3D printer to print according to the model program (the light source intensity of the 3D printer is 280mW, the slice layer thickness is 0.1mm, the bottom layer exposure time is 20s, The exposure time of the remaining layers is 8s) to obtain a hydrogel material.

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Abstract

The invention relates to the technical field of adhesion devices, in particular to application of 3D printing hydrogel and a bionic adhesion device. The invention provides an application of a 3D printing hydrogel in preparation of a bionic adhesion device. Based on the unique physical and chemical properties of softness, slippery property, stimulation response, biological compatibility, material transportation and exchange and the like of the hydrogel and the advantages of higher precision, better designability and higher adhesive force of the hydrogel during preparation of a bionic adhesive device, the bionic structure design is inspired by the characteristic structure of the octopus sucker; the bionic adhesion device is constructed through 3D printing of hydrogel. The bionic adhesion device disclosed by the invention has unique water environment adaptability, good pressure resistance and excellent mechanical properties; and meanwhile, different structures and different driving modes can be realized, and various use conditions are met.

Description

technical field [0001] The invention relates to the technical field of adhesive devices, in particular to an application of a 3D printing hydrogel and a bionic adhesive device. Background technique [0002] At present, whether in industrial production or in daily life, adhesive devices have broad application prospects and strong market potential, including high-end CNC machine tools and robots, aerospace equipment, marine engineering equipment and high-tech ships, advanced rail In the field of advanced machinery and equipment manufacturing, including transportation equipment and agricultural machinery equipment, there is an urgent need for us to develop adhesive devices with better performance to achieve more stable automated production and safe production. On the whole, the adhesive device related industry is in a good stage of development and has become a hot industry for research and development. [0003] At present, the main design sources for the development of biomime...

Claims

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Application Information

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IPC IPC(8): B29C64/106C09D11/101C09D11/107B33Y70/10B33Y10/00
CPCB29C64/106C09D11/107C09D11/101B33Y70/10B33Y10/00
Inventor 王晓龙汪祎贤蒋盼刘德胜吴家宇鲁耀钟周峰
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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